What is the current water temperature in Fukuoka?

As of now, in Fukuoka, the water temperature is 23.16°C. It's safe to say that the water is comfortably warm for various water-related activities.

Japan > Fukuoka

Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

73.7

°F

October 23, 18:57

Trend:

decreasing

Yesterday:

74.3°F

Tomorrow:

73.3°F

Sunrise:

06:29

Sunset:

17:36

Day Length:

11 h. 7 min.

Fukuoka in October

Minimum:

56.8°F

Average:

58.7°F

Maximum:

60.8°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 73.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 1.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 75.2°F on 2025, while the historical minimum was 70.7°F on 2022.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 72.5°F, the minimum temperature may reach 71.8°F, and the maximum might stay at 73.3°F.

Daily water temperature in Fukuoka

Date	Current Year actual* / forecast**	last year	10 years average
Oct 9	74.2°F	78.2°F	75.1°F
Oct 10	74.1°F	77.6°F	75.0°F
Oct 11	74.4°F	77.5°F	74.9°F
Oct 12	74.9°F	78.5°F	74.7°F
Oct 13	75.3°F	77.8°F	74.4°F
Oct 14	75.3°F	79.3°F	74.4°F
Oct 15	75.1°F	78.3°F	73.9°F
Oct 16	74.5°F	78.1°F	73.7°F
Oct 17	74.1°F	77.7°F	73.4°F
Oct 18	74.0°F	77.7°F	73.3°F
Oct 19	73.9°F	77.4°F	73.0°F
Oct 20	74.9°F	76.8°F	73.1°F
Oct 21	75.5°F	76.4°F	73.0°F
Oct 22	74.3°F	76.0°F	72.6°F
Oct 23	73.7°F	75.2°F	72.2°F
Oct 24	73.3°F	74.6°F	71.9°F
Oct 25	73.0°F	74.2°F	71.5°F
Oct 26	72.7°F	73.9°F	71.2°F
Oct 27	72.5°F	73.2°F	71.0°F
Oct 28	72.4°F	72.8°F	70.9°F
Oct 29	72.0°F	72.2°F	70.5°F
Oct 30	71.8°F	71.0°F	70.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 113 swimming days.

The warmest water in Fukuoka was recorded on July 28, 2026, reaching a 88.4°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.3°F in Spring, 78.0°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kitakyushu	74.1°F	30mi
Shimonoseki	73.8°F	39mi
Kumamoto	76.3°F	57mi
Nagasaki	76.3°F	66mi

* current water temperature in this city

** straight line distance from Fukuoka